Since you're asking this question. I would assume you got ticketed for this. If it's a waiverable offense, there is a phone number on the back of the ticket you can call, they'll tell how much it is. If not, it's up to the judge. Your demeanor and previous record will factor into the equation. So dress nice and be polite in the courtroom.
If you didn't get a ticket, DON"T RIDE WITH A PASSENGER.
If you get in an accident, your insurance won't help you one bit and you will be liable for everything. Too much of a risk.
And yes......Ohio has some of the most screwed laws.